Texas Instruments TPS2474x Hot Swap & ORing Controller

Texas Instruments TPS2474x High-Performance Hot Swap & ORing Controller is an integrated ORing and Hot Swap controller for 2.5V to 18V systems. The precise and programmable protection settings for this device aid in the design of high power, high availability systems where isolating faults is critical. Programmable current limit, fast shutdown, and fault timer protect the load and supply during fault conditions such as a hot - short. The fast shutdown threshold and response time can be tuned to ensure a fast response to real faults, while avoiding nuisance trips. Two independent timers (inrush/fault) allow the user to customize protection based on system requirements. Typical applications for these devices include enterprise storage, power muxing, redundant power supplies, and battery back-up.

Features

2.5V to 18V Bus operation (30V abs max)
Programmable protection settings
- Current limit: ±5% at 10mV
- Fast trip: ±10% at 20mV
Reverse voltage: ±1mV at -1-mV
Programmable response time for fast trip and reverse voltage
Programmable FET SOA protection
Dual timer (inrush/fault)
Interchangeable hot swap and ORing

Analog current monitor (1% at 25mV)
Status flags for faults and power good
UV and OV protection
Independent EN for hot swap and ORing
4mm × 4mm 24-pin QFN
Fault response
- TPS24740 = Latch
- TPS24741 = Retry
- TPS24742 = Fast latch off

Applications

Enterprise storage
Power muxing

Redundant power supplies
Battery back up

Associated Development Tools

Texas Instruments TPS24740EVM-596 & TPS24742EVM-667 Evaluation Modules (EVM) are each a fully assembled and tested circuit for evaluating the TPS2474x 2.5V to 18V Positive Voltage Hot-Swap and ORing controller. These evaluation modules are designed for ORing to multiple hot-swapped loads and contains header connectors for easy connection to external test and application circuitry.

TPS24740EVM-596 User's Guide

TPS24742EVM-667 User's Guide